Recombinant Mouse Fc gamma RI/CD64 Protein, CF

Catalog # Availability Size / Price Qty
2074-FC-050

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Recombinant Mouse Fc gamma RI/CD64 Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to bind mouse IgG with an estimated KD <0.5 nM.
Source
Mouse myeloma cell line, NS0-derived mouse Fc gamma RI/CD64 protein
Glu25-Pro297, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
Glu25
Predicted Molecular Mass
31.2 kDa
SDS-PAGE
50-60 kDa, reducing conditions

Product Datasheets

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2074-FC

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

2074-FC

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
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Background: Fc gamma RI/CD64

Receptors for the Fc region of IgG (Fc gamma Rs) are members of the Ig superfamily that function in the activation or inhibition of immune responses such as degranulation, phagocytosis, ADCC (antibody-dependent cellular toxicity), cytokine release, and B cell proliferation (1 - 3). The Fc gamma Rs have been divided into three classes based on close relationships in their extracellular domains; these groups are designated Fc gamma  RI (also known as CD64), Fc gamma  RII (CD32), and Fc gamma  RIII (CD16). Each group may be encoded by multiple genes and exist in different isoforms depending on species and cell type. The CD64 proteins are high affinity receptors (~10-8 - 10-9 M) capable of binding monomeric IgG, whereas the CD16 and CD32 proteins bind IgG with lower affinities (~10-6 - 10-7 M) only recognizing IgG aggregates surrounding multivalent antigens (1, 4). Fc gamma Rs that deliver an activating signal either have an intrinsic immunoreceptor tyrosine-based activation motif (ITAM) within their cytoplasmic domains or associate with one of the ITAM-bearing adapter subunits, Fc R gamma or zeta (3, 5). The only inhibitory member in human and mouse, Fc gamma  RIIb, has an intrinsic cytoplasmic immunoreceptor tyrosine-based inhibitory motif (ITIM). The coordinated functioning of activating and inhibitory receptors is necessary for successful initiation, amplification, and termination of immune responses (5).

Mouse Fc gamma RI is transmembrane protein with three extracellular Ig-like domains, and it delivers an activating signal via the associated Fc R gamma accessory chain (1, 2). The high affinity recognition of IgG by Fc gamma RI permits the triggering of effector responses at low IgG concentrations typical of early immune responses (2). Fc gamma RI is expressed constitutively on monocytes and macrophages and can be induced on neutrophils and eosinophils (1, 4). Its expression is up-regulated during bacterial infections and sepsis.

References
  1. Van de Winkel, J. and P. Capes (1993) Immunol. Today 14:215.
  2. Raghaven, M. and P. Bjorkman (1996) Annu. Rev. Cell Dev. Biol. 12:181.
  3. Ravetch, J. and S. Bolland (2001) Annu. Rev. Immunol. 19:275.
  4. Takai, T. (2002) Nature Rev. Immunol. 2:580.
  5. Ravetch, J. and L. Lanier (2000) Science 290:84.
Long Name
Fc gamma Receptor I
Entrez Gene IDs
2209 (Human); 14129 (Mouse); 295279 (Rat); 102147198 (Cynomolgus Monkey)
Alternate Names
CD64 antigen; CD64; CD64a; Fc fragment of IgG, high affinity Ia, receptor (CD64); Fc gamma RI; FCG1; Fc-gamma receptor I B2; Fc-gamma RI; Fc-gamma RIA; FcgammaRIa; FCGR1; FcgRI; FcgRIA; FCRI; FcRIA; FLJ18345; high affinity Ia, receptor for (CD64); high affinity immunoglobulin gamma Fc receptor I; IgG Fc receptor I

Citations for Recombinant Mouse Fc gamma RI/CD64 Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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  1. Integrin &alphav&beta8 on T�cells suppresses anti-tumor immunity in multiple models and is a promising target for tumor immunotherapy
    Authors: E Dodagatta-, HY Ma, B Liang, J Li, DS Meyer, SY Chen, KH Sun, X Ren, B Zivak, MD Rosenblum, MB Headley, L Pinzas, NI Reed, JS Del Cid, BC Hann, S Yang, A Giddabasap, K Noorbehesh, B Yang, J Dal Porto, T Tsukui, K Niessen, A Atakilit, RJ Akhurst, D Sheppard
    Cell Reports, 2021;36(1):109309.
    Species: Mouse
    Sample Types: Recombinant Protein
    Applications: Bioassay
  2. Osteoclast inhibitory peptide-1 binding to the Fc gammaRIIB inhibits osteoclast differentiation.
    Authors: Shanmugarajan S, Beeson CC, Reddy SV
    Endocrinology, 2010;151(9):4389-99.
    Species: Mouse
    Sample Types: Peptide
    Applications: Surface Plasmon Resonance
  3. Antibody-enhanced, Fc gamma receptor-mediated endocytosis of Clostridium difficile toxin A.
    Authors: He X, Sun X, Wang J, Wang X, Zhang Q, Tzipori S, Feng H
    Infect Immun, 0;77(6):2294-303.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay

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